I am supposed to be in my 9th week and I have already had 3 sonograms. Today I went in and had one done and the doc said that my gestational sac isn't growing like it is supposed to be. My 1st sonogram the baby was 6 centimeters and then last week @ my 2nd app. it grew to 10 cenimeters. This week it hasn't grown much. He said that my hcg levels kinda went down a little but he also said that it does that sometimes at this point. So he took another blood test to check them. He is also sending me to the hospital for another sonogram next week because he said that they have a machine that is 3 times more powerful than the one he has. I have already had 2 M/C and a chemical pregnancy. So should I be worried? They say that some babies measure small too. My progesterone levels are fine he said. I had to have shots every week with my last full pregnancy for the first trimester and he turned out fine. I'm scared/confused/anxious to get this trimester over with. Any words of wisdom or encouragement would be great.